Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 7/80 from 70/4

1st number: 17 2/4, 2nd number: 7/80

70/4 - 7/80 is 1393/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 4 × 20 = 80,
    70/4 = 70 × 20/4 × 20 = 1400/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    7/80 = 7 × 1/80 × 1 = 7/80
  4. Subtract the two like fractions:
    1400/80 - 7/80 = 1400 - 7/80 = 1393/80
  5. In mixed form: 1733/80

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

© everydaycalculation.com